Lifesource Vitamins Uva Ursi — Liquid Extract 333 mg (1 fl oz) — Traditional Urinary Tract Comfort & Balance*
Lifesource Vitamins Uva Ursi (Arctostaphylos uva-ursi) delivers a concentrated liquid extract of bearberry leaf to support urinary tract comfort. Each serving provides 333 mg in a 1:3 herb-strength ratio, crafted with 45–55% grain alcohol for optimal extraction and fast absorption. Produced in FDA-registered, GMP-certified facilities for quality you can trust.*
Research-Driven & Verified Product.
Explore the clinical research, ingredient science, and global evidence supporting this product below.
Research Promise: At Lifesource Vitamins, our commitment is rooted in research and results. Every benefit below is supported by human clinical studies indexed in the National Institutes of Health (NIH) via PubMed, with full texts available in the National Library of Medicine (NLM) PubMed Central (PMC) when available. In addition, we reference reviews from 39 leading health organizations and insights from 20 top global universities to ensure our guidance aligns with credible science.*
Clinically Studied Benefits (Human-First, PubMed/PMC)
✓ Supports antibiotic-sparing strategies for acute urinary discomfort management* — randomized trial evaluated initial uva ursi use to reduce overall antibiotic consumption while monitoring symptom burden and complications in uncomplicated urinary symptom episodes.*
NIH/PubMed — Gágyor I, 2021
✓ Short-term safety boundaries supported by human risk assessment* — arbutin/hydroquinone exposure modeling supports safety under recommended, time-limited use conditions.*
NIH/PubMed — de Arriba SG, 2013
✓ Human metabolism evidence for key urinary-active constituents* — human crossover study measured urinary excretion/metabolism of arbutin-derived metabolites following bearberry extract administration.*
NIH/PubMed — Schindler G, 2002
✓ Evaluated for symptom course in acute urinary episodes* — randomized trial assessed uva ursi for acute urinary symptom duration and severity versus placebo (results mixed; highlights realistic expectations).*
NIH/PubMed — Gágyor I, 2019
✓ Clinical protocols support structured, short-term use models* — published clinical protocol describes designs testing uva ursi approaches with antibiotic “rescue” when needed in uncomplicated urinary symptom contexts.*
NIH/PMC — Afshar K, 2018
✓ Investigated as an alternative-care approach in uncomplicated urinary discomfort* — trial design work evaluates bearberry versus antibiotic therapy with safety and non-inferiority endpoints.*
NIH/PMC — Tóth B, 2022
✓ Aligned with stewardship-focused care pathways* — clinical literature discusses non-antibiotic-first strategies (including bearberry) to help limit unnecessary antibiotic exposure in uncomplicated urinary symptom episodes.*
NIH/PMC — Trill J, 2017
✓ Mechanism-relevant evidence summarized in peer-reviewed reviews* — reviews describe arbutin-derived metabolites and urinary exposure as a plausible pathway supporting traditional urinary comfort use.*
NIH/PMC — Khameneh B, 2021
✓ Supports urinary microbial balance (research context)* — review literature summarizes antibacterial activity against common urinary microbes in experimental settings, consistent with traditional use framing.*
NIH/PMC — Das S, 2020
✓ Clinical trial registration supports ongoing, high-quality evaluation* — registered study records outline ongoing investigation of uva ursi approaches within structured, safety-monitored protocols.*
NIH/ClinicalTrials.gov — NCT03151603
Additional / Promising Evidence*
✓ Mixed results highlight “responder” variability* — controlled data show outcomes can vary by individual, symptom context, and protocol; supports realistic expectation setting.*
NIH/PubMed — Gágyor I, 2019
✓ Clinical protocol designs support short, episode-based use framing* — published protocol emphasizes monitoring and “rescue” escalation when symptoms persist, reflecting real-world practice guardrails.*
NIH/PMC — Afshar K, 2018
✓ Short-term safety boundaries emphasized in toxicology review* — risk assessment supports labeled, time-limited use; prolonged or high-dose use is not advised.*
NIH/PubMed — de Arriba SG, 2013
✓ Human pharmacokinetics support “urinary exposure” rationale* — metabolite excretion findings help explain why bearberry preparations are traditionally positioned for urinary comfort support.*
NIH/PubMed — Schindler G, 2002
✓ Stewardship context discussed in primary-care research* — literature discusses non-antibiotic symptom-first strategies, including herbal options, within monitored care pathways.*
NIH/PMC — Trill J, 2017
✓ Ongoing research continues to define best-fit protocols* — newer reviews summarize active investigation and highlight the need for standardized preparations and clear episode criteria.*
NIH/PMC — Tóth B, 2022
University-Led & Academic Studies
✓ Human arbutin metabolite excretion study (academic pharmacology design)* — controlled human design measured urinary metabolites after bearberry extract dosing.*
NIH/PubMed — Schindler G, 2002
Global Evidence & Reviews
✓ Review summaries of natural therapeutics for urinary comfort* — peer-reviewed reviews discuss bearberry within broader non-antibiotic urinary support strategies and research context.*
NIH/PMC — Das S, 2020
We monitor research from leading institutions —
Harvard, Johns Hopkins, Mayo Clinic, Cleveland Clinic, Cambridge, Oxford, Stanford, Yale, MIT, the University of Florida, Oregon State University – Linus Pauling Institute, Tufts, Boston University, Cornell, Columbia, and Ohio State — to ensure our guidance remains aligned with the highest standards of credible science.*
Key Ingredients
-
Uva Ursi (Arctostaphylos uva-ursi) Leaf Extract — traditional herb supplying arbutin-related constituents used to support urinary tract comfort and microbial balance (research context).*
Brief Benefit Bullets
- Traditional support for mild lower urinary tract discomfort*
- Concentrated 1:3 liquid extract for fast absorption*
- Delivers 333 mg uva ursi leaf per serving*
- Supports urinary microbial balance & natural flushing*
- Alcohol-based extract (45–55%) to preserve active constituents*
- Non-antibiotic-first option researched in stewardship-aligned protocols*
- Short-term use that fits monitored symptom-management approaches*
- Adults seeking traditional urinary tract support during occasional discomfort*
- Those wanting a fast-absorbing liquid extract with flexible serving format*
-
3rd-party lab tested for identity, potency & purity
Suggested Use
Shake well. Adults take 1 mL (about 1 dropperful) in water or juice up to 2–3 times daily, or as directed by a healthcare professional. Intended for short-term use; consult your physician for persistent or recurrent symptoms. Not recommended during pregnancy or breastfeeding. If taking medications or have a medical condition, consult your physician.*
Product Specifications
Serving Size — 1 mL (≈ 1 dropperful) — Uva Ursi leaf extract 333 mg (1:3)
Servings Per Container — 30 (1 fl oz / 30 mL)
Form — Liquid Extract (45–55% grain alcohol)
Free From — Non-GMO, gluten-free, vegan*
Quality — Third-party tested for identity, potency & purity
LifeSource Vitamins — Proudly American — Since 1992
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Uva Ursi Liquid Extract 333 mg (1 fl oz) — traditional urinary tract comfort & balance support with research-backed arbutin metabolism and stewardship-aligned clinical evaluation. Clinically Studied Ingredients — NIH/PubMed!*
